Avg. Base Salary (GBP)
The average salary for a Principal Scientist is £53,756 in 2025
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What is the Pay by Experience Level for Principal Scientists?
What Do Principal Scientists Do?
FAQs About Principal Scientists
What is the highest pay for Principal Scientists?
Our data indicates that the highest pay for a Principal Scientist is £69k / year
What is the lowest pay for Principal Scientists?
Our data indicates that the lowest pay for a Principal Scientist is £44k / year
How can Principal Scientists increase their salary?
Increasing your pay as a Principal Scientist is possible in different ways. Change of employer: Consider a career move to a new employer that is willing to pay higher for your skills. Level of Education: Gaining advanced degrees may allow this role to increase their income potential and qualify for promotions. Managing Experience: If you are a Principal Scientist that oversees more junior Principal Scientists, this experience can increase the likelihood to earn more.